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Pronunciation varies by accent · noun
(botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses..
Its removal does not, however, leave the mouth of the capsule wide open, for around the margin are two circles of pointed teeth forming the peristome.
We can distinguish therefore in the body of a polyp the column, circular or oval in section, forming the trunk, resting on a base or foot and surmounted by the crown of tentacles, which enclose an area termed the peristome, in the centre of which again is the mouth. […] The mouth may be level with the surface of the peristome, or may be projecting and trumpet-shaped.
Use peristome when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Peristome means (botany) One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Its removal does not, however, leave the mouth of the capsule wide open, for around the margin are two circles of pointed teeth forming the peristome.
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